Sogda Heat Shield
The “Sogda” heat shield is designed to ensure thermal protection of people during firefighting with hand nozzles as well as portable and fixed fire monitors (Fig. 1).
The “Sogda” heat shield, depending on the model is portable or fixed and can be used both in open areas and indoors, allowing the personal for a long time to stay in the fire zone with high heat fluxes.
The shields can be used during fire extinguishing at oil-and-gas, fuel, chemical, timber and woodworking industry facilities, power engineering, metallurgy, and mechanical engineering enterprises, in residential and office buildings. They can be used when extinguishing aircraft post-accident fires and fires in subways
THE MODIFIED BASE HEAT SHIELD MODEL “SOGDA” 1A.01
The following heat shield models are available:
«SOGDA» 1А.01 - protects a two-man fire crew from large-scale heat flux. The heat shield is equipped with wheels for it to be displaced.
«SOGDA» 1B - This is a portable foldout shield meant for the individual thermal protection of the firefighter carrying-out his operational activities using a manual firefighting hose nozzle. The shield is transported and stored in a special case.
«SOGDA» 2А.01, «SOGDA» 2А.02, «SOGDA» 2А.21 - designed for long-term protection of the operator of a fixed fire monitors from the extreme heat flow.
«SOGDA» 3 - This mobile shield is meant for both firefighters protection during fire-extinguishing operations and protecting equipment, buildings, and people from thermal radiation.
«SOGDA» 4.01 - The heat shield was designed for ensuring thermal protection of people, fire extinguishing machinery and equipment during operations for eliminating emergencies involving an oil and gas gusher.
The main technical characteristics of «SOGDA» heat shields are shown in Table 1.
№ | Parameter | Unit of measure | Model of «SOGDA» heat sheild | ||||||
1А.01 | 1В | 2А.01 | 2А.02 | 2А.21 | 3 | 4.01 | |||
1. | Max heat flux | kW/m2 | 60 | ||||||
2. | Heat flux decreasing ratio | times | 50 | ||||||
3. | Working pressure | bar | 0,4-0,6 | ||||||
4. | Rate of water flow | l/s | 0,5-0,6 | 0,4 | 0,5-0,6 | 0,7-0,9 | 0,9 | ||
5. | Number of nozzles | pcs | 4 | 3 | 4 | 6 | 7 | ||
6. | Overall dimensions of shield, HхLхW (±10): | mm | -- | -- | 2125х | 2125х | 2125х | 2125х 1970х 1060 | 2195х |
6.1 | - dimensions when folded | mm | 2125х | 936х | -- | -- | -- | -- | -- |
6.2 | - dimensions with the support tilted (ready for operation) | mm | 2030х | 1770х | -- | -- | -- | -- | -- |
7. | Dimensions of the window for the fire monitor HхW (±5) | mm | -- | -- | 787х118 | 787х165 | 787х118 | 355х480 | 905х400 |
8. | Dimensions of the top window for the hand nozzle HхW (±5) | mm | 590х120 | -- | -- | -- | -- | -- | -- |
9. | Dimensions of the bottom window for the portable fire monitor HхW (±5) | mm | 370х165 | -- | -- | -- | -- | -- | -- |
10. | Sheild rotation angle in the horizontal plane | degrees | -- | -- | 360 | -- | -- | ||
11. | Movement of the fire monitor with the sheild mounted, in the vertical plane | degrees | -- | -- | * | ** | *** | -- | -- |
11.1 | - upwards | -- | -- | 75 | -- | -- | |||
- downwards | degrees | -- | -- | 15 | -- | -- | |||
12. | Climatic version in accordance with GOST 15150-69 | -- | УХЛ1 | ||||||
13. | Weight (without water in the cooling system), not more than | Kgs | 42 | 11,5 | 40 | 80 | 420 | ||
14. | Weight of the hose filter (depending on the filter version) | Kgs | 1,3-1,6 | 1,3-1,5 | -- | -- | -- | -- | -- |
15. | Case weight | kgs | -- | 4,5 | -- | -- | -- | -- | -- |
Description of the main parts of the heat shield «Sogda» is shown in Table 2.
№ | Position | Part name |
1. | 1 | Frame |
2. | 2, 3, 5, 6, 7, 20 | Mesh panels |
3. | 4 | Top window for hand nozzle |
4. | 8 | Bottom window for portable fire monitor |
5. | 9,13,14,19 | Solid panel |
6. | 10,16 | handle |
7. | 11 | support |
8. | 12 | wheel |
9. | 15 | nameplate |
10. | 17 | screw |
11. | 18 | Hand support |
12. | 21 | Water cooling system hose |
13. | 22 | Pedal locker |
FIG. 2. GENERAL VIEW OF THE HEAT SHIELD ‘’SOGDA’’ 1A.01
Description of the components of the water cooling scheme of the heat shield «Sogda» is shown in Table 3.
№ п/п | Position | Part name |
1. | 1 | Piping |
2. | 2 | Nozzle |
3. | 3 | Cross |
4. | 4 | Valve |
5. | 5 | Lock nut |
6. | 6 | Gasket |
7. | 7 | Frame bracket |
8. | 8, 9 | Screw |
9. | 10 | Nozzle mounting screw |
FIG. 3 SCHEME OF THE WATER COOLING SYSTEM OF THE HEAT SHIELD SOGDA
The filter components for connecting the «Sogda» heat shield are listed in Table 4
№ п/п | Position | Part name |
1. | 1 | Body |
2. | 2 | Filter screen |
3. | 3, 4 | Couplings |
4. | 5, 6 | Plugs |
5. | 7 | gasket |
6. | 8 | Connection valve |
FIG. 4 FILTER FOR CONNECTION THE SOGDA HEAT SHIELD
The scheme of connecting the heat shield «Sogda» to the water supply line is shown in Fig. 5.
The components of the «Sogda» heat shield connection system is given in Table 5.
№ п/п | Position | Part name |
1. | 1 | Connection valve |
2. | 2 | Water cooling system hose |
Important note! Only water is used to cool the Sogda heat shield, so in case of switching to foam firefighting you must immediately switch to a hose line from a water supply source!